Carbon pack for continuous-form stationery



April 1953 1.. K. FLEI SCHMANN 2,634,139

CARBON PACK FOR CONTINUOUS-FORM STATIONERY Filed May 29', 1951 FIE--lbonized rear-end portions ed at n.

Patented Apr. 7, 1953 CARBON PACK FOR CONTINUOUS-FORM STATIONERY LesterK. Fleischmann, Chicago, Ill.

Application May 29, 1951, Serial No. 228,898

2 Claims.

difficulty has been overcome by sewing the rear end of the sheets to theunderside of the leader. sheet, so that in extended position tension isapplied directly to the line of stitching, and the, strength of theconnection is approximately doubled.

The invention is illustrated in a preferred embodiment in theaccompanying drawings, in

which 7 Fig. 1 is a perspective view showing the carbon pack before itis folded back into its normal position; Fig.2, a perspective viewshowing the pack 1 ready for use, and how it is anchored on the carbonblade of a writing machine; Fig. 3, an enlarged fragmentary sectionalview, taken as indicated 'at line 3-3 of Fig. 1; and Fig. 4, an enlargedfragmentary sectional view, taken as indicated at line 4-4 of Fig. 2.

In the embodiment illustrated, it will be understood that the thicknessof the sheets has beeng-rossly exaggerated for clearness. Actually, afull carbon pack will fit between a pair of forwardly advancingstationery strips without producing any series bulkiness.

In the embodiment illustrated, a leader sheet 5 is folded, as indicatedat 6, so that it may be slipped over and anchored by a conventionalcarbon blade I which is part of a typewriting or billing machine.

tend forwardly for manifolding use between stationery strips. In thatposition, the working carbon sheet is held directly by the straight line7 of stitching and does not have a fold through A desired number ofcarbon sheets 8 are brought into superposed relation with theircargainst the underside of the leader sheet 5. The ar portions of thecarbon sheets near the front facing upwardly rtion of the leader sheetare then fastened toge her, preferably by a straight line of stitching9, which may be in the form of a chain stitch.

I e carbon sheets are then folded rearwardly airound the front end ofthe leader sheet, as inrjidicated at ID. The carbon sheets are thenfolded forwardly within the leader sheet, as indicat- In the formillustrated, the carbon sheets are folded upwardly together, but ifpreferred their free end portions may be folded downwardly to a positionagainst the forwardly extending portion of the leader sheet.

It will be understood that the outer carbon sheet may be completelyunfolded to extended position from the leader sheet, so that it willexwhich any pulling stress must be transmitted. This arrangementprovides a very strong connection and will withstand a substantialpulling stress. However, when a carbon sheet has been sufiiciently wornit may be torn off readily by a downward or angular pull from thestitching.

The present carbon packs are well adapted for use with separate stripsof stationery or fanfold stationery. However, with fanfold stationery itis usually desirable to notch or trim off the corners of the pack. Ifdesired, the carbon sheets may be inclined a few degrees from the leadersheet, so that the free end of the working carbon strip will be directedwell into the lateral fold of the fanfold stationery. In any case, thepresent construction provides better alignment of the carbon sheets withrespect to the leader sheet, because it does not have to pull through afold or around the stubs of previously used carbon sheets. It is easy tomanufacture,

and if a double chain lock stitch is used there is no danger of thethreads unraveling.

The foregoing detailed description is given for clearness ofunderstanding only, and no unnecessary limitations should be understoodtherefrom, for some modifications will be obvious to those skilled inthe art.

I claim:

1. A carbon pack, adapted for use between a pair of continuous-formstationery strips, comprising: a folded leader sheet, adapted to beanchored on its fold line between forwardly advancing stationery strips;a plurality of carbon sheets having their rear-end portions, with theircarbonized faces upward, facing the underside of the front portion ofsaid leader sheet and stitched thereto along a straight line, saidcarbon sheets being folded rearwardly about the front end of the leadersheet and their central portions folded forwardly within said foldedleader sheet so that the outer carbon sheet may be completely unfoldedto extended position from the leader sheet for manifolding use betweenthe strips.

2. A carbon pack as specified in claim 1, in

which the central portions of the carbon sheets are all folded together.5

LESTER K. FLEISCHMANN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,233,204 Fleischmann Feb. 25,1941 2,322,983 Washburne June 29, 1943 2,363,601 Lewis Nov. 28, 1944

